Guide: The led lamp bead is made of semiconductor material, and its applicability is very small, because the LED chips of each unit are 3 to 5 cm square, so it can be made into various shapes. It is widely used in lighting production, LED large screen display, traffic lights and other production areas. The most special is that as the current increases, its color can be changed to red, orange, yellow, and finally green. So what is the voltage of the led lamp bead? Will it consume a lot of electricity? How many types of LED lamp bead? These are the problems that people often care about. Only by knowing the voltage of the led lamp bead can we ensure our use. Let's learn together!
Led lamp beads
What is the voltage of the led lamp bead?
1. What is the voltage of the led lamp bead, 0.06W, the voltage is 2.5-3.5V, and the current is 20mA.
2, the voltage of the led lamp bead, 0.5W, the voltage is 2.5-3.77V, the current is 150mA
3, the voltage of the led lamp bead, 1W, the voltage is 2.79-3.99V, the current is 350mA
4, the voltage of the led lamp bead, 3W, the voltage is 3.05-4.47V, the current is 700mA
5, the voltage of the led lamp bead, 5W, the voltage is 3.16-4.88V, the current is 1000mA
How many types of LED lamp beads
There are so many models of LED lamp beads, this can be too much, there is no way to generalize. Roughly speaking, according to the package is divided into in-line, patch, piranha
Divided into large, medium and small power according to power
High-power white LEDs (such as CREE's XML-T6) have a single power of 10W and a voltage of 3.3V and 3A.
Low-power red LED (such as the common 5MM in-line) voltage 2v, current 15 mA
If you can't find the component model, you can infer the working voltage according to the light color:
Red light 1.8~2.2v
Huang Guang 2.0~2.4v
Green light 2.2~2.8v
Languang and white light 2.8~3.5v
Led lamp beads
The chip package is a small power tube such as 0805 and 1206, and the working current is generally 10 mA, but there are exceptions;
The chip package is a small power tube such as 3014, 3528, 3535, etc. The working current is generally 20~50 mA, but there are exceptions;
The chip package is 5050, 5060, 5630 and other medium power tubes, and the working current is generally 50~150 mA, but there are exceptions;
High-power LEDs are all packaged in SMD. The different series of different brands of different companies have very different parameters; but the nominal working current of 1W is 350mA.
Method of distinguishing LED lamp beads
1. Look at the brightness, that is, the driving current at 350mA, the brightness when the voltage is between 3.0-3.6V, the higher the better.
2. Look at the chip brand and size, the brand has NICHIA, CREE, wafer, etc. The more the better, the bigger the chip, the better.
3. Look at the BIN, that is, the color temperature partition and the voltage sub-BIN, the finer the better.
4. Look at the attenuation, you need to do the aging test, the light decay is as small as possible.
5. Look at the actual application, such as: the market has a suitable and inexpensive lens, aluminum substrate, just fine, the lens, aluminum substrate needs to open the mold will be put into a larger, 1W high power, current: 350ma, voltage: 2.8- 4.0V Brightness: 80-130LM Color temperature: 3000-12000K.
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